Products > Test Equipment

RIGOL DP711 and DP712 new 1ch PSU

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borisbees:

--- Quote from: ElectronMan on November 12, 2018, 04:45:04 am ---You should read back through this thread. I figured it out and the details are there.

--- End quote ---

Yes, the work you've done with the i2c FRAM is great, but:


--- Quote from: ElectronMan on March 15, 2017, 03:35:44 am ---This is not an ideal solution as it requires opening it up and leeching onto the FRAM chip with a device that talks i2c, but it works :)

--- End quote ---

I'm looking for a way to generate a valid licence key from software without opening the PSU, along the lines of http://www.gotroot.ca/rigol/riglol/. I'm well aware I can activate all the features with your FRAM changes, but that only unlocks it for me - generating serials solves it for everyone.

tv84:
The DP700 keygen is identical to the DL3000 keygen (with a different char_map). See here.

They don't use ECC as riglol/rigup. It's a cascade of CRC16 calculations giving a 28-char license.

The only parameter that is needed for the calculations is the S/N.

I've successfully licensed a DP711 (attached).

Example of licenses for someone curious:

Rigol DP700 S/N: DP7A123456789

                     Official License         
DP7-TRIGER     22W5NBYPM6GUP27A68RY4VWQWH5L 
DP7-TIMER      T9ZKK8GPH7GUTA2BUDDYWJX8PKJ5 
DP7-HIRES      AES6FY3KV6GUV4ENR6QCBK8HH2CK 

VMZ:
Good afternoon!

Tell me, how exactly did you generate the keys for dp700? Did you do it with riglol? What keys should I use?

tommot:
Hi, I would also be interested to know and understand how the calculation using this cascaded CRC-16s works.
If I understand this procedure correctly, a CRC-16 is applied to each character of the S/N and converted back to characters via a mapping table?

tv84:
I will not make the method public. But it's easily visible in the DL3000 FW for those who know how to see.

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